P413 CEEFAX 413 Thu 31 Aug 19:13/13 1/5 OZONE 6pm Thu 31 Aug Northern England Air Level Quality (ppb) U"BAN sites Newcastle Centre Very Good 5 Middlesbrough Very Good 21 Leeds Centre Very Good 15 Liverpool Centre Very Good 21 Hull Centre Very Good 12 RURAL sites Cumbria Very Good 28 North Yorkshire Very Good 36 Data from Department of Environment C England S England RjgionAir UK MapsP413 CEEFAX 413 Thu 31 Aug 19:12/14 2/5 SULPHUR DIOXIDE 6pm Thu 31 Aug Northern England Air Level Quality (ppb) URBAN sites Sundjtland Very Good 1 Newcastle Centre Good 75 Middlisbrough Very Good 7 Leeds Centre Very Good 7 Barnsliy Very Good 4 Liverpool Centre Very Good 1 Hull Centre Very Good 24 Data from Department of Environment C England S England RjgionAir UK MapsP413 CEEFAX 413 Thu 31 Aug 19:12/54 3/5 NITROGEN DIOXIDE 6pm Thu 31 Aug Northern England Air Level Quality (ppb) URBAN sites Newcastle Cjntte Very Good 42 Middlisbrough Very Good 19 Billingham Very Good 13 Leeds Centre Very Good 33 Manchester Very Good 25 Sheffield Very Good 22 Liverpool Cjntti Very Good 18 Hull Centre Very Good 39 Data from Department of Environment C England S England RjgionAir UK MapsP413 CEEFAX 413 Thu 31 Aug 19:14/13 4/5 BENZENE Northern England For 24 hours to Avg Year 6pm Thu 31 August ppb avg All sites are URBAN Middlisbrough Low 1.44 1.1 Leeds Low .66 1.7 Benzene is a substance that can cause cancer. Indjpjndjnt health experts have advised that a yearly average of 5 parts per billion(ppb) presents an exceedingly small risk to health. Data from Department of Environment C England S England RjgionAir UK MapsP413 CEEFAX 413 Thu 31 Aug 19:11/34 5/5 1,3-BUTBDIENE Northern England For 24 hours to Avg Year 6pm Thu 31 August ppb avg All sites are URBAN Middlisbrough - - .30 Leeds Low .15 .40 1,3-Butadiinj is a substance that can cause cancer. Independent health experts have advised that a yearly average of 1 part per billion (ppb) presents an exceedingly small risk to health. Data from Department of Environment C England S England RjgionAir UK Maps